公开(公告)号：US5686958A

公开(公告)日：1997-11-11

申请号：US536265

申请日：1995-09-29

申请人： Tetsuya Shibasaki ,  Fujio Okada ,  Nobuyuki Akai

发明人： Tetsuya Shibasaki ,  Fujio Okada ,  Nobuyuki Akai

IPC分类号： G02B23/24 ,  A61B1/04 ,  H04N5/21 ,  H04N7/18 ,  H04N9/64

CPC分类号： H04N9/646 ,  H04N5/21

摘要： An electronic endoscope apparatus has an illumination unit for irradiating light of red, light of green and light of blue on an object for photographing in predetermined order at a predetermined period; an image signal generation unit for receiving reflection light from the object, generating a field sequential image signal on the basis of the received reflection light and delivering the field sequential digital image signal; a first memory unit for forming a predetermined look up table; a red data memory unit for storing data of a red image signal by one field; a green data memory unit for storing data of a green image signal by one field; a blue data memory unit for storing data of a blue image signal by one field, one field from the first memory unit being stored in one of the data memory unit for red, green and blue in synchronism with the order and the predetermined period of color illumination by the illumination unit; a switching unit for reading data from one of said data memory unit in synchronism with the order and the period of color illumination by the illumination unit and supplying the data as an addressing data to the first memory unit; and a unit for reading data pieces representative of the red, green and blue image signals from the data memory units and synthesizing the data pieces to produce a color image signal.

摘要翻译： 电子内窥镜装置具有照射单元，用于以预定顺序在预定时间内将用于照射的红色，绿色和蓝色光的光照射在用于拍摄的物体上; 用于接收来自对象的反射光的图像信号生成单元，基于所接收的反射光产生场顺序图像信号并传送场序列数字图像信号; 用于形成预定查询表的第一存储单元; 红色数据存储单元，用于将红色图像信号的数据存储一个场; 绿色数据存储单元，用于将绿色图像信号的数据存储一个场; 蓝色数据存储单元，用于将蓝色图像信号的数据存储一个场，来自第一存储单元的一个场与序列和预定颜色周期同步地存储在红色，绿色和蓝色的数据存储单元之一中 由照明单元照明; 切换单元，用于与照明单元的顺序和颜色照明的周期同步地从所述数据存储单元之一读取数据，并将数据作为寻址数据提供给第一存储器单元; 以及用于从数据存储单元读取表示红色，绿色和蓝色图像信号的数据的单元并合成数据以产生彩色图像信号的单元。

公开(公告)号：US06933963B2

公开(公告)日：2005-08-23

申请号：US10093605

申请日：2002-03-11

申请人： Kazunori Abe ,  Fujio Okada

发明人： Kazunori Abe ,  Fujio Okada

IPC分类号： A61B1/04 ,  G02B23/24 ,  H04N5/225 ,  H04N7/01 ,  H04N7/18

CPC分类号： H04N7/01 ,  G02B23/2484 ,  H04N7/0105

摘要： To provide a first memory for storing an odd field data, a second memory for storing an even field data acquired in an NTSC system, a third memory for storing the same video data stored in the first and second memories, and a TV standard conversion circuit. For the data in a period for which a writing of a next data overtakes reading of the data from the first memory or the second memory, a writing into the third memory is inhibited, and the data is read from the third memory, whereby the signal of the NTSC system is converted into the signal of a PAL system. In this manner, an excellent video is displayed on a PAL monitor without any the bar noise.

摘要翻译： 为了提供用于存储奇数场数据的第一存储器，用于存储在NTSC系统中获取的偶数场数据的第二存储器，用于存储存储在第一和第二存储器中的相同视频数据的第三存储器，以及TV标准转换电路 。 对于下一个数据的写入超过来自第一存储器或第二存储器的数据的读取的周期中的数据，对第三存储器的写入被禁止，并且数据从第三存储器读取，由此信号 的NTSC系统被转换成PAL系统的信号。 以这种方式，在PAL监视器上显示出优良的视频，而没有任何条形噪声。

公开(公告)号：US5830124A

公开(公告)日：1998-11-03

申请号：US634881

申请日：1996-04-19

申请人： Shigeo Suzuki ,  Fujio Okada

发明人： Shigeo Suzuki ,  Fujio Okada

IPC分类号： A61B1/00 ,  A61B1/04 ,  H01R13/719 ,  H04N5/225

CPC分类号： H01R13/719 ,  A61B1/00124 ,  A61B1/00128 ,  A61B1/042 ,  H04N2005/2255

摘要： A connector guide structure for electronic endoscope systems capable of efficiently eliminating high-frequency noises which are allowed by a connector guide functioning as an antenna to mix by way of sheath members and a console. The connector guide structure comprises a connector guide for connecting a connector disposed on an electronic endoscope to a main unit, and noise eliminating capacitors are connected between the connector guide and a console of the main unit. A capacitor for eliminating noises produced by a radio knife and a plurality of capacitors for eliminating noises produced by clock-frequency signals are used as the capacitors. Feet of the capacitors are directly connected within an interval of 4 mm to 20 mm which is reserved between the connector guide and the console. Accordingly, the connector guide structure is capable of favorably eliminating not only the noises produced by the radio knife but also the noises produced by providing clock-frequency signals.

摘要翻译： 一种用于电子内窥镜系统的连接器引导结构，其能够有效地消除由用作天线的连接器引导件允许的高频噪声，以通过护套构件和控制台进行混合。 连接器引导结构包括用于将设置在电子内窥镜上的连接器连接到主单元的连接器引导件，并且在连接器引导件和主单元的控制台之间连接有噪声消除电容器。 使用用于消除由无线电刀产生的噪声的电容器和用于消除由时钟频率信号产生的噪声的多个电容器作为电容器。 电容器的脚直接连接在连接器引导件和控制台之间保留的4 mm至20 mm的间隔内。 因此，连接器引导结构不仅能够有效地消除由无线电刀产生的噪声，而且可以消除通过提供时钟频率信号产生的噪声。

公开(公告)号：US5569158A

公开(公告)日：1996-10-29

申请号：US313363

申请日：1994-09-27

申请人： Shigeo Suzuki ,  Fujio Okada

发明人： Shigeo Suzuki ,  Fujio Okada

IPC分类号： G02B23/24 ,  A61B1/00 ,  A61B1/04 ,  A61B1/05 ,  H05K9/00

CPC分类号： A61B1/00114 ,  A61B1/05 ,  H05K9/0064

摘要： A shielding structure of an electronic endoscope apparatus which can sufficiently remove noise even when an electric cautery is used. A signal transmission cable which connects a charge coupled device disposed at the end portion of an electronic endoscope to a processor unit is electrically shielded by a double shield composed by an inner shield and an outer shield. The inner shield is connected to the ground in a light source connector and the outer shield is connected to the frame ground of the processor unit through a capacitor. The outer shield is further connected to a shielding member provided around the charge coupled device and a patient ground to which an electrode piece of an electric cautery is connected. Noise is greatly removed, so that the picture quality is improved.

摘要翻译： 一种电子内窥镜装置的屏蔽结构，即使在使用电灼烧时也能充分地除去噪声。 将设置在电子内窥镜的端部的电荷耦合器件连接到处理器单元的信号传输电缆通过由内屏蔽和外屏蔽构成的双屏蔽电屏蔽。 内屏蔽件连接到光源连接器中的地面，外屏蔽件通过电容器连接到处理器单元的框架接地。 外屏蔽件进一步连接到设置在电荷耦合器件周围的屏蔽部件和连接电火花电极片的患者接地。 噪音大大消除，使图像质量得到改善。

公开(公告)号：US5614949A

公开(公告)日：1997-03-25

申请号：US402488

申请日：1995-03-10

申请人： Shigeo Suzuki ,  Fujio Okada

发明人： Shigeo Suzuki ,  Fujio Okada

IPC分类号： H04N5/225 ,  H04N5/235 ,  H04N5/232

CPC分类号： H04N5/2353 ,  H04N2005/2255

摘要： There is provided an electronic shutter control device for an electronic endoscope which can control exposure with high precision even if the intensity of incident light is high in a close-up and the like. The control device has a mask circuit for forming masks having a predetermined width in upper and lower portions of a monitor screen in a vertical scanning direction, and a detection circuit for verifying whether or not the intensity of incident light is higher than a predetermined value. An electronic shutter control circuit forms a discharge pulse for electronic shutter control from a driving pulse generated in a blanking period of a horizontal synchronizing signal when the intensity of incident light is lower than the predetermined value, and forms dense discharge pulses, whose number is, for example, 256 in one horizontal synchronizing signal, in an effective period of the horizontal synchronizing signal in an area masked in the vertical scanning direction when the intensity of incident light is higher than the predetermined value. High-precision exposure control can be achieved in a close-up by controlling the storage charge amount by the sweep control pulses and the like.

摘要翻译： 提供了一种用于电子内窥镜的电子快门控制装置，其即使在特写镜头等中入射光的强度高的情况下也能够高精度地控制曝光。 控制装置具有用于在垂直扫描方向上形成监视器屏幕的上部和下部具有预定宽度的掩模的掩模电路和用于验证入射光强度是否高于预定值的检测电路。 当入射光的强度低于预定值时，电子快门控制电路在水平同步信号的消隐期间产生的驱动脉冲形成用于电子快门控制的放电脉冲，并形成致密的放电脉冲， 在入射光的强度高于预定值时，在垂直扫描方向上屏蔽的区域中的水平同步信号的有效期间内的一个水平同步信号中的256个。 通过利用扫描控制脉冲等控制存储电荷量，可以在特写中实现高精度的曝光控制。

公开(公告)号：US5440341A

公开(公告)日：1995-08-08

申请号：US245483

申请日：1994-05-18

申请人： Shigeo Suzuki ,  Fujio Okada

发明人： Shigeo Suzuki ,  Fujio Okada

IPC分类号： A61B1/04 ,  G02B23/24 ,  H04N5/225 ,  H04N9/04 ,  H04N9/07 ,  H04N9/64

CPC分类号： H04N9/045 ,  H04N2005/2255

摘要： A simultaneous electronic endoscope apparatus which is capable of preventing the deterioration of the picture quality due to the difference of the saturation property in mixture signals. The apparatus comprises a charge coupled device provided with a plurality of color filters. Upper and lower pixel signals are mixed in a charge coupled device so as to form mixture signals. When the saturated state of a mixture signal is detected, the gain of the mixture signal is multiplied by a preset coefficient so as to apparently cancel the saturated state. Alternatively two types of luminance signals may be formed by combining the plurality of mixture signals formed on each horizontal scanning line. When the saturated state of a luminance signal is detected, the gain of the luminance signal is amplified so that the level thereof is the same as that of the other luminance signal, thereby apparently cancelling the saturated state.

摘要翻译： 一种同时的电子内窥镜装置，其能够防止由于混合信号中的饱和特性的差异导致的图像质量的劣化。 该装置包括具有多个滤色器的电荷耦合器件。 上下像素信号在电荷耦合器件中混合以便形成混合信号。 当检测到混合信号的饱和状态时，混合信号的增益乘以预设系数，以便明显地消除饱和状态。 或者，可以通过组合在每个水平扫描线上形成的多个混合信号来形成两种类型的亮度信号。 当检测到亮度信号的饱和状态时，亮度信号的增益被放大，使得其亮度信号的电平与其他亮度信号相同，从而明显地消除了饱和状态。

公开(公告)号：US4668577A

公开(公告)日：1987-05-26

申请号：US821526

申请日：1986-01-24

申请人： Toshihiko Ohta ,  Fujio Okada

发明人： Toshihiko Ohta ,  Fujio Okada

IPC分类号： D06M10/00 ,  D01D10/00 ,  D01F6/04 ,  D06M101/00 ,  D06M101/16 ,  D06M101/18 ,  D06M101/20 ,  D06M101/22 ,  D02J1/22 ,  D02J1/00

CPC分类号： D01F6/04 ,  D01D10/00 ,  Y10T428/29 ,  Y10T428/2913

摘要： Crosslinked polyethylene filaments made of polyethylene having an average molecular weight of not less than 4.times.10.sup.5, which are stretched and crosslinked by irradiation of radioactive rays and have a strength of not less than 20 g/d and an initial modulus of not less than 400 g/d.

摘要翻译： 由聚乙烯制成的平均分子量不小于4×10 5的交联聚乙烯长丝，其通过放射线照射被拉伸和交联，并且具有不小于20g / d的强度和不小于400g / d。

公开(公告)号：US06876380B2

公开(公告)日：2005-04-05

申请号：US10098481

申请日：2002-03-18

申请人： Kazunori Abe ,  Fujio Okada

发明人： Kazunori Abe ,  Fujio Okada

IPC分类号： A61B1/04 ,  H04N5/225 ,  H04N5/335 ,  H04N5/341 ,  H04N5/343 ,  H04N5/372 ,  H04N5/46 ,  H04N7/01 ,  H04N7/18 ,  H04N11/20

CPC分类号： H04N7/0135 ,  H04N5/335 ,  H04N5/46 ,  H04N7/0105 ,  H04N11/20 ,  H04N2005/2255

摘要： An electronic endoscopic apparatus having various sorts of electronic endoscopes mounting a CCD with a different number of pixels, for example, 410,000 pixels, 270,000 pixels or 190,000 pixels that are connectable to a processor. A CCD drive and signal processing circuit drives all the CCDs at a frequency set up for the CCD with 410,000 pixels, and an information quantity conversion circuit expands an image acquired by the CCD with 270,000 pixels or 190,000 pixels by pixel interpolation in a horizontal direction or a vertical direction to form an image with an aspect ratio of 4 to 3. Also, a video signal acquired in an NTSC system is converted into a video signal of a PAL system by using a television standard conversion circuit, thereby displaying an excellent PAL video without any bar noise.

摘要翻译： 一种电子内窥镜装置，具有安装具有不同数量像素的CCD的各种电子内窥镜，例如可连接到处理器的410,000像素，270,000像素或190,000像素。 CCD驱动器和信号处理电路驱动具有410,000像素的CCD设置频率的所有CCD，并且信息量转换电路以水平方向以270,000像素或19万像素插值来扩展由CCD获取的图像，或 垂直方向形成长宽比为4比3的图像。此外，通过使用电视标准转换电路将在NTSC系统中获取的视频信号转换成PAL系统的视频信号，从而显示出优良的PAL视频 没有任何酒吧噪音。

公开(公告)号：US06459447B1

公开(公告)日：2002-10-01

申请号：US09409658

申请日：1999-09-30

申请人： Fujio Okada ,  Mitsuhisa Nakagawa ,  Keiichi Negishi

发明人： Fujio Okada ,  Mitsuhisa Nakagawa ,  Keiichi Negishi

IPC分类号： H04N718

CPC分类号： H04N5/23203 ,  H04N5/18 ,  H04N7/183 ,  H04N2005/2255 ,  Y10S128/908

摘要： With an electronic endoscope, a wide band video signal is output to connected instruments without giving electric shocks to a body even when the connected instruments are not insulated. The video signal V is converted to differential signals V1, V2 by a differential amp 31 and input to buffers 42, 43 via capacitors 32, 33. The clamp signal CP generated by the clamp signal output means 44 is input to the end terminals of the switches SW1, SW2 via the photocoupler 46. The differential signals V1, V2 undergo pulse clamping in the buffers 42, 43 and the DC components are restored. The video signal restoring portion 49 restores the video signal V on the basis of the differential signals V1, V2 having undergone DC restoration and outputs the video signals to the connected instruments.

摘要翻译： 使用电子内窥镜，即使连接的仪器未被绝缘，宽带视频信号也输出到连接的仪器，而不会对电路产生电击。 视频信号V由差分放大器31转换成差分信号V1，V2，并通过电容器32,33输入到缓冲器42,43。由钳位信号输出装置44生成的钳位信号CP被输入到 开关SW1，SW2通过光电耦合器46.差分信号V1，V2在缓冲器42,43中进行脉冲钳位，直流分量被恢复。 视频信号恢复部分49基于已经经过DC恢复的差分信号V1，V2恢复视频信号V，并将视频信号输出到连接的仪器。

公开(公告)号：US6059722A

公开(公告)日：2000-05-09

申请号：US950587

申请日：1997-10-15

申请人： Seiji Matumoto ,  Suwao Satoh ,  Fujio Okada ,  Shigeo Suzuki

发明人： Seiji Matumoto ,  Suwao Satoh ,  Fujio Okada ,  Shigeo Suzuki

IPC分类号： G02B23/24 ,  A61B1/06 ,  A61B1/07

CPC分类号： A61B1/0669

摘要： A light source device for an endoscope is capable of selecting a reading method between a method utilizing a light shading period and a method doing without a light shading period. It is possible to adopt both the new reading method and the conventional reading method. A rotary shutter is composed of, for example, a disk with a light passing portion for securing a light source path and a light shading portion formed on the outer peripheral portion, and a DC motor rotates and stops the rotary shutter. When the electronic endoscope apparatus to which the light source device is applied is of an all-pixels reading type, the rotation mode in which light is output during a predetermined light shading period at intervals of 1/30 sec is set. When the light source device is applied to a conventional electronic endoscope apparatus, for example, of a pixel mixture signal reading type system, the stop mode in which the illuminating light is not shaded is set. The reading system adopted by the electronic endoscope apparatus is judged by an ID discriminator, and the rotary shutter is stopped at a predetermined position by a stop controller in the stop mode.

摘要翻译： 用于内窥镜的光源装置能够选择利用遮光时段的方法和不进行遮光时间的方法之间的读取方法。 可以采用新的阅读方法和常规阅读方法。 旋转快门由例如具有用于固定光源路径的光通过部分的光盘和形成在外周部分上的遮光部分组成，并且DC电机旋转并停止旋转快门。 当应用光源装置的电子内窥镜装置是全像素读取型时，在+ E，fra 1/30 + EE sec的间隔的预定的遮光期间输出光的旋转模式是 组。 当将光源装置应用于例如像素混合信号读取型系统的传统电子内窥镜装置时，设置照明光不被遮蔽的停止模式。 电子内窥镜装置采用的读取系统由ID鉴别器判断，并且在停止模式下由停止控制器将旋转快门停在预定位置。